ISL4486IU Intersil, ISL4486IU Datasheet - Page 8

• Manufacturer Part Number: ISL4486IU
• Description: IC TXRX RS-485 HS 40MBPS 8-MSOP
• Manufacturer: Intersil
• Type: Transceiverr

Specifications of ISL4486IU

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Typical Performance Curves
FIGURE 11. DRIVER OUTPUT CURRENT vs DIFFERENTIAL
-1.5
FIGURE 7. ISL4486 DRIVER AND RECEIVER WAVEFORMS
FIGURE 9. ISL81486 DRIVER WAVEFORMS AT 30Mbps
-1.5
1.5
1.5
-3
120
100
5
0
3
0
-3
3
0
80
60
40
20
5
4
3
2
1
0
0
0
RO
R
DIFF
DRIVER+CABLE DELAY
DI = 40Mbps
DRIVING 200 FEET (61 METERS) OF CAT5
CABLE (DOUBLE TERMINATED WITH 120Ω)
PER FIGURE 4
OUTPUT VOLTAGE
= 54Ω, C
DIFFERENTIAL OUTPUT VOLTAGE (V)
A/Y - B/Z
1
B/Z
A/Y
L
A - B
= 100pF
TIME (10ns/DIV)
TIME (10ns/DIV)
2
8
(~290ns)
3
V
CC
= 5V, T
4
ISL4486, ISL81486
A
= 25°C, ISL4486 and ISL81486; Unless Otherwise Specified
5
0
5
FIGURE 12. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs
-1.5
FIGURE 8. ISL4486 DRIVER AND RECEIVER WAVEFORMS
1.5
950
900
850
800
750
700
-3
5
0
3
0
3.8
3.6
3.4
3.2
2.8
DRIVER+CABLE DELAY
FIGURE 10. SUPPLY CURRENT vs TEMPERATURE
-40
4
3
-40
-25
-25
DI = 40Mbps
DRIVING 400 FEET (121 METERS) OF CAT5
CABLE (DOUBLE TERMINATED WITH 120Ω)
TEMPERATURE
A - B
RO
0
TEMPERATURE (°C)
TEMPERATURE (°C)
0
TIME (10ns/DIV)
DE = V
DE = GND, RE = X
(~585ns)
CC
25
R
25
, RE = X
DIFF
= 100Ω
50
50
R
DIFF
= 54Ω
75
75
5
0
85
85